Decided to refit then just head back out to see if it was just a glitch in the saved game.
Headed out and It turns out the next objective is the South Western approaches so I head over the top of Scotland and sail down and start to cause a bit of chaos near Liverpool etc
Of course I am now out of the torpedos and must head home. The map has worked fine again and no issues so far. I reach Kield and dock up. Check for any u-boat updates and I listen to the commanders spiel about the mission. Accept the mission and head out.
Kiel is rather glitchy again and when I check the map....CRASH.
No idea what's going on anymore